Wire-up colorMode="hdr"

Fow now it uses a fixed white point of 150nits
TBD if this is disabled or adjusted

Test: Demo app
Change-Id: Iac13597b3d7633fdef3feaf7ec1da0c27c87904c
diff --git a/libs/hwui/renderthread/CanvasContext.h b/libs/hwui/renderthread/CanvasContext.h
index 0306eec..cba710f 100644
--- a/libs/hwui/renderthread/CanvasContext.h
+++ b/libs/hwui/renderthread/CanvasContext.h
@@ -30,6 +30,7 @@
 #include "renderthread/RenderTask.h"
 #include "renderthread/RenderThread.h"
 #include "utils/RingBuffer.h"
+#include "ColorMode.h"
 
 #include <SkBitmap.h>
 #include <SkRect.h>
@@ -119,7 +120,7 @@
     void setLightAlpha(uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha);
     void setLightGeometry(const Vector3& lightCenter, float lightRadius);
     void setOpaque(bool opaque);
-    void setWideGamut(bool wideGamut);
+    void setColorMode(ColorMode mode);
     bool makeCurrent();
     void prepareTree(TreeInfo& info, int64_t* uiFrameInfo, int64_t syncQueued, RenderNode* target);
     void draw();
@@ -211,6 +212,7 @@
     bool isSwapChainStuffed();
     bool surfaceRequiresRedraw();
     void setPresentTime();
+    void setupPipelineSurface();
 
     SkRect computeDirtyRect(const Frame& frame, SkRect* dirty);